Home / 189,401.01-284,066.06-81,349.42

Finding the Fourth Proportional to 189,401.01, 284,066.06 and 81,349.42

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Solution

The fourth proportional to 189,401.01, 284,066.06 and 81,349.42 is: 122,008.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,401.01 : 284,066.06 = 81,349.42 : x
  2. Step 2: Convert to fraction form
    189,401.01/284,066.06 = 81,349.42/x
  3. Step 3: Cross multiply
    189,401.01x = 284,066.06 × 81,349.42
  4. Step 4: Simplify right side
    189,401.01x = 23,108,607,757.53
  5. Step 5: Solve for x
    x = 23,108,607,757.53/189,401.01
  6. Step 6: Final answer
    x = 122,008.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.